A Continuation-Based Method to Compute the Relevant Unstable Equilibrium Points for Power System Transient Stability Analysis

作者：Chen Lei^*; Min Yong; Xu Fei; Wang Kai Peng

来源：IEEE Transactions on Power Systems, 2009, 24(1): 165-172.

DOI：10.1109/TPWRS.2008.2009395

• Continuation method
• direct method
• transient stability
• unstable equilibrium point (UEP)

The computation of the unstable equilibrium point (UEP) is a key step involved in the direct methods of power system transient stability analysis. A new continuation-based method to compute the UEPs is proposed. The mechanical powers of the generators are changed to form a parameterized equation. Then the solution curve of the equation is traced by the continuation method from the stable equilibrium point to a UEP. The direction of power increase is determined to get a UEP relevant to the fault. The obtained UEPs are mostly type-1 and the method is applicable to detailed generator models. The method is tested in several systems and satisfactory results are obtained.

• 出版日期2009-2
• 单位清华大学